BC141 NPN Metal Transistor 60V 1A TO-39

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BC141 NPN Metal Transistor 60V 1A TO-39 The BC141 is a silicon planar epitaxial NPN transistor housed in a JEDEC TO-39 metal can. It is designed for medium-power applications where a robust package, good thermal performance and reliable switching are required. The metal case (collector connected to the case) improves heat dissipation and mechanical durability, making the BC141 suitable for repeated soldering cycles and long-term service in through-hole assemblies. Electrically the BC141 supports up to 60 V collector-emitter voltage and 1 A continuous collector current, with a variety of gain groups offered for selection. Uses include audio output stages, driver circuits, relay and motor drivers, and general-purpose switching in industrial and consumer electronics. Features: Metal TO-39 package (robust mechanical construction). Good thermal dissipation (case-mounted collector). Medium-power switching and amplification capability. Available in gain groups for matched circuits. Low saturation voltages at moderate drive currents. Suitable for audio and general-purpose driver stages. Specifications: Parameter Value Device Type: NPN Bipolar Transistor Package: TO-39 (Metal Can) Collector-Emitter Voltage (VCEO): 60V Collector-Base Voltage (VCBO): 100V Emitter-Base Voltage (VEBO); 7V Maximum Continuous Collector Current (IC): 1A Total Power Dissipation (Tcase ≤ 45°C): 3.7W DC Current Gain (hFE): 40 – 250 (depending on gain group) Transition Frequency (fT): 50MHz Collector-Emitter Saturation Voltage: 0.10V @ 100mA Collector-Emitter Saturation Voltage: 0.35V @ 500mA Collector-Emitter Saturation Voltage: 0.6V @ 1A Thermal Resistance (Junction–Case): 35°C/W Thermal Resistance (Junction–Ambient): 200°C/W Operating Temperature: −55°C to +150°C Storage Temperature: Up to +175°C Pinout: Pin Number Function 1 Emitter 2 Base 3 Collector Applications: Audio amplifier output and driver stages. Relay and solenoid drivers. Motor driver pre-stages (small DC motors). Power switching and regulator circuits. General-purpose medium-power switching in industrial and consumer equipment. Repair of vintage equipment that uses metal-can transistors. Packages: 1x BC141 NPN Metal Transistor 60V 1A TO-39. Documents: BC141 Datasheet.